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3. Kendrick S. The buckling under external pressure of circular cylindrical shells with evenly spaced equal strength circular ring frames, Part I. Naval Construction Research Establishment Report R211, 1953.
4. Buckling of multiple-bay ring-reinforced cylindrical shells subject to hydrostatic pressure;Nash;Trans of ASME, Journal of Applied Mechanics,1953
5. General instability of ring-stiffened cylindrical shells subject to external hydrostatic pressure—a comparison of theory and experiment;Galletly;Trans of ASME, Journal of Applied Mechanics,1958